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Discussion :: Declarations and Initializations

  1. Point out the error in the following program.

    #include
 int main()
 {     
     int (*p)() = fun;   
     (*p)();    
     return 0; 
} int fun() 
{
    printf("Freshergate.com\n");  
   return 0;
}

     

    2. A.

    Error: in int(*p)() = fun;
    B.

    Error: fun() prototype not defined
    C.

    No error
    D.

    None of these

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    Answer : Option B

    Explanation :

    The compiler will not know that the function int fun() exists. So we have to define the function prototype of int fun();
    To overcome this error, see the below program 

    #include

    int fun(); /* function prototype */

    int main()

    {

        int (*p)() = fun;  

        (*p)();

        return 0;

    }

    int fun()

    {

        printf("Freshergate.com\n");

        return 0;

    }

     

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